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The role of salinity on the changes of the biomass characteristics and on the performance of an OMBR treating tannery wastewater

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The role of salinity on the changes of the biomass characteristics and on the performance of an OMBR treating tannery wastewater

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dc.contributor.author Lujan Facundo, Maria Jose es_ES
dc.contributor.author Fernández-Navarro, Julián es_ES
dc.contributor.author Alonso Molina, José Luís es_ES
dc.contributor.author Amoros, Inmaculada es_ES
dc.contributor.author Moreno Trigos, Mª Yolanda es_ES
dc.contributor.author Mendoza Roca, José Antonio es_ES
dc.contributor.author Pastor Alcañiz, Laura es_ES
dc.date.accessioned 2019-03-02T21:01:28Z
dc.date.available 2019-03-02T21:01:28Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0043-1354 es_ES
dc.identifier.uri http://hdl.handle.net/10251/117555
dc.description.abstract [EN] Tannery wastewaters are difficult to treat biologically due to the high salinity and organic matter concentration. Conventional treatments, like sequential batch reactors (SBR) and membrane bioreactors (MBR), have showed settling problems, in the case of SBR, and ultrafiltration (UF) membrane fouling in the case of MBR, slowing their industrial application. In this work, the treatment of tannery wastewater with an osmotic membrane bioreactor (OMBR) is assessed. Forward osmosis (FO) membranes are characterized by a much lower fouling degree than UF membranes. The permeate passes through the membrane pores (practically only water by the high membrane rejection) from the feed solution to the draw solution, which is also an industrial wastewater (ammonia absorption effluent) in this work. Experiments were carried out at laboratory scale with a FO CTA-NW membrane from Hydration Technology Innovations (HTI). Tannery wastewater was treated by means of an OMBR using as DS an actual industrial wastewater mainly consisting of ammonium sulphate. The monitoring of the biological process was carried out with biological indicators like microbial hydrolytic enzymatic activities, dissolved and total adenosine triphosphate (ATP) in the mixed liquor and microbial population. Results indicated a limiting conductivity in the reactor of 35 mS cm(-1) (on the 43th operation day), from which process was deteriorated. This process performance diminution was associated by a high decrease of the dehydrogenase activity and a sudden increase of the protease and lipase activities. The increase of the bacterial stress index also described appropriately the process performance. Regarding the relative abundance of bacterial phylotypes, 37 phyla were identified in the biomass. Proteobacteria were the most abundant (varying the relative abundance between 50.29% and 34.78%) during the first 34 days of operation. From this day on, Bacteroidetes were detected in a greater extent varying the relative abundance of this phylum between 27.20% and 40.45%. (C) 2018 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship This study was supported by the Spanish Ministry of Economy and Competitiveness through the project RTC-2015-3582-5-AR.
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Water Research es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Forward osmosis es_ES
dc.subject Osmotic membrane biorreactor es_ES
dc.subject Tannery wastewater es_ES
dc.subject Draw solution es_ES
dc.subject Microbial community es_ES
dc.subject.classification MICROBIOLOGIA es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title The role of salinity on the changes of the biomass characteristics and on the performance of an OMBR treating tannery wastewater es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.watres.2018.05.046 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//RTC-2015-3582-5Q4618002BC.VALENCIANA/ES/Desarrollo de un proceso de biorreactor de membranas para gestión de efluentes salinos. Proyecto ODEON/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Seguridad Industrial, Radiofísica y Medioambiental - Institut de Seguretat Industrial, Radiofísica i Mediambiental es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Ingeniería del Agua y del Medio Ambiente - Institut Universitari d'Enginyeria de l'Aigua i Medi Ambient es_ES
dc.description.bibliographicCitation Lujan Facundo, MJ.; Fernández-Navarro, J.; Alonso Molina, JL.; Amoros, I.; Moreno Trigos, MY.; Mendoza Roca, JA.; Pastor Alcañiz, L. (2018). The role of salinity on the changes of the biomass characteristics and on the performance of an OMBR treating tannery wastewater. Water Research. 142:129-137. https://doi.org/10.1016/j.watres.2018.05.046 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.watres.2018.05.046 es_ES
dc.description.upvformatpinicio 129 es_ES
dc.description.upvformatpfin 137 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 142 es_ES
dc.identifier.pmid 29864648
dc.relation.pasarela S\368585 es_ES
dc.contributor.funder Ministerio de Economía y Empresa es_ES


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